1 files changed, 80 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/io_constraints_1.f90 b/gcc/testsuite/gfortran.dg/io_constraints_1.f90
new file mode 100644
index 000000000..eb8ab8d53
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/io_constraints_1.f90
@@ -0,0 +1,80 @@
+! { dg-do compile }
+! { dg-options "-std=f95" }
+! Part I of the test  of the IO constraints patch, which fixes PRs:
+! PRs 25053, 25063, 25064, 25066, 25067, 25068, 25069, 25307 and 20862.
+!
+! Contributed by Paul Thomas  <pault@gcc.gnu.org>
+!
+module fails
+
+ 2000 format (1h , 2i6)                        ! { dg-error "Format statement in module" }
+
+end module fails
+
+module global
+
+  integer :: modvar
+  namelist /NL/ modvar
+
+contains
+
+  subroutine foo (i)
+    integer :: i
+    write (*, 100) i
+ 100 format (1h , "i=", i6)                     ! { dg-warning "The H format specifier at ... is a Fortran 95 deleted feature" }
+  end subroutine foo
+
+end module global
+
+ use global
+ integer :: a,b, c(20)
+ integer(8) :: ierr
+ character(80) :: buffer(3)
+
+! Appending to a USE associated namelist is an extension.
+
+ NAMELIST /NL/ a,b                              ! { dg-error "already is USE associated" }
+
+ a=1 ; b=2
+
+!9.2.2.1:
+ write(c, *) a, b                               !  { dg-error "array" }
+!Was correctly picked up before patch.
+ write(buffer((/3,1,2/)), *) a, b               !  { dg-error "vector subscript" }
+
+!9.2.2.2 and one of 9.4.1
+!________________________
+
+ write(6, NML=NL, FMT = '(i6)')                 !  { dg-error "group name and format" }
+ write(6, NML=NL, FMT = 200)                    !  { dg-error "group name and format" }
+
+!9.4.1
+!_____
+!
+
+! R912
+!Was correctly picked up before patch.
+ write(6, NML=NL, iostat = ierr)                ! { dg-error "requires default INTEGER" }
+
+! Constraints
+!Was correctly picked up before patch.
+ write(1, fmt='(i6)', end = 100) a              ! { dg-error "END tag" }
+!Was correctly picked up before patch.
+ write(1, fmt='(i6)', eor = 100) a              ! { dg-error "EOR tag" }
+!Was correctly picked up before patch.
+ write(1, fmt='(i6)', size = b) a               ! { dg-error "SIZE= specifier not allowed" }
+
+
+ READ(1, fmt='(i6)', end = 900) a               ! { dg-error "not defined" }
+ READ(1, fmt='(i6)', eor = 900, advance='NO') a ! { dg-error "not defined" }
+ READ(1, fmt='(i6)', ERR = 900) a               ! { dg-error "not defined" }
+
+!Was correctly picked up before patch.
+ READ(1, fmt=800) a                             ! { dg-error "not defined" }
+
+
+100 continue
+200 format (2i6)
+ END
+
+! { dg-final { cleanup-modules "fails global" } }